Inspector Gadget S02 E18 Gadget's Clean Sweep

"Don't worry, chief. Inspector Gadget is always on duty."

M.A.D. agents travel back in time to 19th-century England to steal the crown jewels and wipe out Inspector Gadget's ancestors, chimney sweeps named Chimney and Char Gadget. Gadget is assigned to follow them back in time and stop them.